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Finding the Fourth Proportional to 181,718.31, 272,460.83 and 119,315.91

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Solution

The fourth proportional to 181,718.31, 272,460.83 and 119,315.91 is: 178,897.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,718.31 : 272,460.83 = 119,315.91 : x
  2. Step 2: Convert to fraction form
    181,718.31/272,460.83 = 119,315.91/x
  3. Step 3: Cross multiply
    181,718.31x = 272,460.83 × 119,315.91
  4. Step 4: Simplify right side
    181,718.31x = 32,508,911,274.23
  5. Step 5: Solve for x
    x = 32,508,911,274.23/181,718.31
  6. Step 6: Final answer
    x = 178,897.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.